Methanol → HCID 86602921, compound

HRID 901773Notes

Reaction equation

HRID 901773 reaction equation
[CH2:1]([O:8][C@@H:9]1[C@@H:18]([O:19][CH2:20][C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[C@H:17]([O:27][C@@H:28]2[O:57][C@H:56]([CH2:58]O)[C@@H:47]([O:48][CH2:49][C:50]3[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=3)[C@H:38]([O:39][CH2:40][C:41]3[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=3)[C@H:29]2[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[C@@H:16]([CH2:60][O:61][CH2:62][C:63]2[CH:68]=[CH:67][CH:66]=[CH:65][CH:64]=2)[O:15][CH:10]1[O:11][CH2:12][CH:13]=[CH2:14])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(S(F)(F)[F:75])CC)C.CO.C(OCC)(=O)C>COCCOC>[CH2:1]([O:8][C@@H:9]1[C@@H:18]([O:19][CH2:20][C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[C@H:17]([O:27][C@@H:28]2[O:57][C@H:56]([CH2:58][F:75])[C@@H:47]([O:48][CH2:49][C:50]3[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=3)[C@H:38]([O:39][CH2:40][C:41]3[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=3)[C@H:29]2[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[C@@H:16]([CH2:60][O:61][CH2:62][C:63]2[CH:68]=[CH:67][CH:66]=[CH:65][CH:64]=2)[O:15][C@@H:10]1[O:11][CH2:12][CH:13]=[CH2:14])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 887MethanolHCID 8857Ethyl AcetateHCID 123472(Diethylamino)sulfur trifluorideHCID 86602917HCID 86602917, compound

Product 1

HCID 86602921HCID 86602921, compoundYield 78.5%

Reagents, catalysts & solvents 1

HCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
60 °C

Procedure

The compound (6.43 g, 6.97 mmol) synthesized in Example 2 (2c) was dissolved in 1,2-dimethoxyethane (130 mL) and diethylaminosulfur trifluoride (2 mL, 20.50 mmol) was added thereto, followed by stirring of the mixture at 60° C. for 1 hour. Methanol (10 mL) was added to the reaction mixture under ice-cooling and the mixture was stirred for 30 minutes. After ethyl acetate (50 mL) was added thereto and the organic layer was washed with saturated aqueous sodium hydrogencarbonate solution (50 mL) and saturated brine (50 mL) and dried with anhydrous sodium sulfate, the solvent was distilled off under reduced pressure. The residue was purified using silica gel flash column chromatography (hexane:ethyl acetate, 6:1, V/V) to obtain the desired title compound (5.06 g, yield 78%) as a yellow solid.

Workup

  1. temperaturecooling
  2. stirringthe mixture was stirred for 30 minutes
  3. washthe organic layer was washed with saturated aqueous sodium hydrogencarbonate solution (50 mL) and saturated brine (50 mL)
  4. dry with materialdried with anhydrous sodium sulfate
  5. distillationthe solvent was distilled off under reduced pressure
  6. customThe residue was purified

Sources & evidence

ORD record
ord-e6486f75161a451e981ce36257e375ff
Source dataset
uspto-grants-2008_04
Patent number
US07361744B2

Reaction notes

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